YOU: Through heritable random mutations and changes in the allele frequencies of genetic traits, which through natural selection result in beneficial changes being encouraged through successful survival and reproduction, while detrimental or neutral changes are not so encouraged.
This is hardly adequate to explain now new information is added to the genome. Where does the new information come from in order to add new body parts and organs and physiological systsems? Mutations can only alter information that is already there.
What makes you believe that?